US2095511A - Anesthesia demonstration device - Google Patents

Description

Oct. 12, 1937. v w. T. OBERTO 2,095,511

ANESTHESIA DEMONSTRATION DEVICE Filed March 8, 1937 2 Sheets-Sheet l INVENTOR.

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Oct. 12, 1937. w. T. OBERTO ANESTHESIA DEMONSTRATION DEVICE 2 Sheets-Sheet 2 Filed March 8, 1937 INVENTOR.

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i atentecl Oct. 12, 1937 I V y UNITED STAS ?IATENT OFFIQE AnnsrnrismpnMoNs'rRA'rroN DEVICE William T. Oberto, Denver, C010. i I Application March 8, 1937, Serial No. 129,608

I I l 6 Claims. (01.. 32-71) This invention relates to a device for demontacks or screws inserted through the skull H and. strating and instructing physicians, dentists, and completely concealed by the overlying sponge rubstudents, in the technic of nerve-block anestheber. From each contact, an electrical conductor sia. The principal object of (the invention is to it extends downwardly through the neck of the 7 provide a model patients'head with an oral cavmodel. 'The conductors l3 are led into the supity havinggresilient buccal andli'ngual surfaces porting cabinet l and each terminates in an elecinto which "an injection needle may be inserted, trio light bulb M. and to conceal beneath these surfaces at the Thebulbs Hi are preferably placed to the rear proper points on the desired nerve locations, elecof a glass plate l upon which are lettered the 1;) trical contacts which, if contacted by the needle names of the various nerves or descriptions of the 10 will give either or both an audible and visible invarious oral areas which the individual nerves .dication. that the proper position has been accuserve, as shown at It, in Fig. 1. Current is fed to rately reached. i the bulbs from a suitable transformer ll through The device is particularly useful in training the a main conductor H3. The other lead from the l5 hands and the eye of students so that they will be transformer, indicated at is, is conducted through l5 skilled in placing the hypodermic needle at the a flexible cord 25- to a hypodermic syringe 2| of proper points to anesthetize the desired nerves. the type used for local anesthesia or nerve Other objects and advantages reside in the' deblock operations. a tail construction 'of the invention, which is de- The sponge rubber cushion which represents 1 signed for simplicity, economy, and efiiciency. the mouth tissue permits the needle of the syringe These will become more apparent from the follow- M to be easily and repeatedly inserted without ing description. damage and without disclosing the points of In the following detailed description of the inperforation. vention reference is had to the accompanying In use, the operator selects the mouth section 5 drawings which form a part hereof. Like nuwhich he desires to anesthetize. He then inserts merals refer to like parts in all views of the drawthe needle of the syringe into the sponge rubber ings and throughout the description. 22 in the direction of the nerve which serves the In the drawings:- chosen section. If the needle is correctly insert- Fig. l is a perspective view illustrating the comed, its point will strike the contact l2 representplete device in use. ing the proper nerve position for the chosen sec- 30 Fig. 2 is'a detail inferior maxillary section of tion. This causes the lamp in circuit with that the model employed with the device. contact to illuminate one of the plates I6 to dis- Fig. 3 illustrates a vertical section through the play either the name of the desired nerve orrthe completedevice. In this section the skull portion description of the section which would be anof'the modelisnot cut by the section but is shown esthetized. The circuit to the contact is, of 35 in side elevation. course, completed through the cord 20 and the Fig. 4 is a detail superior maxillary section of syringe 25. the model. If desired, an audible signal such as an electric The invention comprises a suitable supporting buzzer or bell can be placed in series with the 4.0 cabinet [0 upon which is mounted a model of a main lead 18 as shown at 24, so that whenever a 40 human head such as indicated at 25. The head contact is made, an audible signal will indicate is preferably molded of a suitable resilient comthe closing of the circuit and a visible signal will pound such as Koragel over a skull II. The indicate which one of the contacts has been portions of the model which represent the tissues reached. 43 which invest the necks of the teeth and cover the By forming the cheeks, gums, and tongue of 45 alveolar parts of the jaws are formed of porous the model from sponge rubber,they can be manipor sponge rubber as indicated at 22. The skull ulated with the fingers similarly to the natural is preferably an exact reproduction of a human surfaces and can be pierced many times with the skulland serves not only as a foundation for the needle without showing holes or perforations head mold, but also as a foundation or support which would indicate to other users, the sought 50 for a series of electrical contact points l2 which positions.

are attached to the skull at points corresponding For structural reasons, it is preferred to rigidly to the proper anesthetizing points on the nerve support the skull II on a short pipe nipple 23 locations serving the oral cavity. which is clamped to the cabinet l9 by means of The contacts 12 are preferably headed metal clamp nuts 26 to securely hold the model in place. 55

' in circuit with said The nipple 23 also serves as a convenient conduit for the conductors [3.

While the invention has been described simply as pertaining to the nerves of the oral cavity of the human body; to include any other desired'portion or portions of the body or a complete body model could be employed if desired. A model representing the human vertebral column could be used for demonstrating and instructing in spinal anesthesia.

The indicating lamps are illustrated in the face of the supporting cabinet. They could, of course, be placed at any desired location, even at a distance from the model if desired. The principal feature of the invention is the concealing of electrical contacts within a model at points where it is desirable for an injection needle to reach so that a definite indication will be given the operator when the needle has been correctly and properly inserted. The device is easily portable. An electric cord 2? can be led from the transformer I l to any convenient electric outlet.

While a specific form of the improvement has been described and illustrated herein, it is desired to be understood that the same may be varied, Within the scope of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent is:-

1. A device for demonstrating local anesthesia comprising: amodel of a portion of the human body; electrical contacts concealed below the surface of said model at points corresponding to nerve location in the human body; a signal system in circuit with said contacts; and a probing member in the circuit of said system so that when the probing member is inserted through the surface of the model, an indication will be given provided one of the contacts is contacted by said'probing member.

2. A device for demonstrating local anesthesia comprising: a model of a portion of the human body; electrical contacts concealed below the surface of said model at points corresponding to nerve location in the human body; a signal system contacts; a probing member inv the circuit of said system so that when the probing member is inserted through thesurface of the model, an indication will be given provided one of the contacts is contacted by said probing member; a chart containing designations referring to the individual contacts; and an electric lamp for each designation on said chart, each of said lamps being in circuit with one of said contacts.

it could of course be expanded 3. A device for demonstrating the technic of local anesthesia comprising: a model of the human head; flexible, perforatable surfaces representing the tissues of the mouth of said head; a series of contacts covered by said surfaces, each of said contacts being positioned at a point corresponding to a nerve location in the human head; a series of electric lamps; a conductor leading from each of said contacts to one of said lamps; and a chart carrying a series of designations referring to the location of said contacts, each of said lamps beingarranged to illuminate one of said designations.

4. A device for demonstrating the technic of local anesthesia comprising: a model of the human head;

the latter is inserted into saidv surfaces, a circuit will be closed when one of. said 'contacts is conilluminate a designation on said chart.

5. Alocal anesthesia demonstration devicecom prising: a skull member representing a human skull; sponge-like rubber covering the alveolar portions of said skull member; electriccont'act members supported by said skull member and concealed by said rubber'covering; and an elec tric signal device in circuit with'feach of said contacts.

6. A local anesthesia demonstration d'evice comprising: a skull member representingfia human skull; sponge-like rubber covering the'alyeol'arpor tions of said skulllm'ember; electric contact mem bers supported by said skull member and' concealed by said'rubber covering; acabinet supporting said'skull member; a translucent face in said cabinet carrying designations referring. to the position of said contacts; a probing. member; and a series of lamps in said cabinet, each of said lamps being positioned opposite one of the designations so that the latter will becomeilluminated when its cooperating, contact is closed.

WILLIA T; OBERTOL,

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